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From: Marcin Wisnicki <mwisnicki+freebsd@gmail.com>
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On Wed, 17 Nov 2010 21:30:13 -0800, Julian Elischer wrote:

> On 11/17/10 12:15 PM, Marcin Wisnicki wrote:
>>>
>> Probably not. I thought about it a bit more and realized that you will
>> miss state of cpu registers which is rather important.
>>
>> How does debugging over firewire work if it only has access to host RAM
>> ?
> 
> registers are saved to ram as part of exception handling..
> 

So I guess it means it's not possible to debug complete lockup (caused by 
driver) where no panic() occured ?